Potential subjects will be approached by their treating outpatient physician (Physiatrist or Neurologist) or Physical or Occupational Therapist to see if they would be interested in participating in the study. The principal investigator will also send introductory letters to his outpatients at RIC informing them of the study. Letters will only be sent to the PI's patients (Dr. Marciniak, Dr. Toledo). Potential subjects will be educated regarding study procedures, risks and benefits, and privacy risks. Informed consent will be obtained only during initial screening and signed if the patient is interested in proceeding. Eligibility criteria will be screened for (See below). Subjects who lack decisional capacity will not included in the study.